These shares were sold pursuant to Mr. Moorman's Rule 10b5-1 trading plan adopted by Mr. Moorman on March 11, 2011.

(2)

These shares were sold pursuant to Laura Moorman's Rule 10b5-1 tradind plan adopted on March 11, 2011.

(3)

These shares were sold pursuant to the Rule 10b-5 trading plan adopted by the Trustee of the Lewis Jefferson Moorman IV Trust on March 11, 2011.

(4)

The prices for these sales of shares ranged from $41.49 to $42.23 per share.

(5)

The registrant undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.